graphql变体如何使用apollo server express接受参数数组？

npm install apollo-server-express express graphql

const express = require('express');
const { ApolloServer, gql } = require('apollo-server-express');

const typeDefs = gql`
  type Query {
    getItems(ids: [Int!]!): [Item]
  }

  type Item {
    id: Int
    name: String
  }
`;

const resolvers = {
  Query: {
    getItems: (_, { ids }) => {
      // 在这里处理接受到的参数数组
      // 返回相应的数据
    },
  },
};

const server = new ApolloServer({ typeDefs, resolvers });

const app = express();
server.applyMiddleware({ app });

app.listen({ port: 4000 }, () =>
  console.log(`Server ready at http://localhost:4000${server.graphqlPath}`)
);

query {
  getItems(ids: [1, 2, 3]) {
    id
    name
  }
}